v2.4.0.8
Common and Preferred Stock - Additional Information (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Class of Stock [Line Items]    
Preferred stock, shares authorized 5,000 5,000
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Put Options [Member]
   
Class of Stock [Line Items]    
Common stock, held by management 161 198
Fair value adjusted to common stock $ 16,975 $ 14,116